The Department of Defense is America's largest government agency. Our mission is to provide the military forces needed to deter war and ensure our nation's security.

The United States Department of Defense (DoD, [2] USDOD, or DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising the five U.S. armed services, the Army; Navy; Marines; Air Force; Space Force; the Coast Guard for some purposes, and related functions and agencies.

The mission of the Department of Defense is to provide a lethal Joint Force to defend the security of our country and sustain American influence abroad.

The Department of Defense (DOD) provides the military forces needed to deter war, and to protect the security of the United States.

Jan 26, 2025 · U.S. Department of Defense (DoD), executive division of the U.S. federal government responsible for ensuring national security and supervising U.S. military forces. Based in the Pentagon, it includes the Joint Chiefs of Staff, the departments of the U.S. Army, U.S. Navy, and U.S. Air Force, and

6 days ago · The Department of Defense provides the military forces needed to deter war and ensure our nation's security. The U.S. Secretary of Defense oversees the Department of Defense and...

The United States secretary of defense (acronym: SecDef) is the head of the United States Department of Defense (DoD), the executive department of the U.S. Armed Forces, and is a high-ranking member of the federal cabinet. [5] [6] [7] The secretary of defense's position of command and authority over the military is second only to that of the president of the United States, who …

The United States Department of Defense (DoD) has a complex organizational structure. It includes the Army , Navy , the Marine Corps , Air Force , Space Force , the Unified combatant commands , U.S. elements of multinational commands (such as NATO and NORAD ), as well as non-combat agencies such as the Defense Intelligence Agency and the ...

To provide insightful and forward-thinking national security advice and support to the Secretary of Defense and Department of Defense leadership on matters affecting strategy, planning,...

The Department of Defense provides the military forces needed to deter war and protect national security.